#pragma once
#include <iostream>
#include<string>
#include<unistd.h>
#include<cstring>
#include<sys/types.h>
#include<sys/stat.h>
#include<sys/socket.h>
#include<arpa/inet.h>
#include<netinet/in.h>
#include "log.hpp"

enum{
    SocketErr=2,
    BindErr,
    ListenErr,
};

const int backlog=10;

class Sock
{
public:
    Sock()
    {}
    ~Sock()
    {}
public:
    void Socket()
    {
        sockfd_=socket(AF_INET,SOCK_STREAM,0);
        if(sockfd_<0)
        {
            lg(Fatal,"socker error,%s:%d",strerror(errno),errno);
            exit(SocketErr);
        }
    }
    void Bind(uint16_t port)
    {
        struct sockaddr_in local;
        memset(&local,0,sizeof(local));
        local.sin_family=AF_INET;
        local.sin_port=htons(port);
        local.sin_addr.s_addr=INADDR_ANY;
        if(bind(sockfd_,(struct sockaddr*)&local,sizeof(local))<0)
        {
            lg(Fatal,"bind error,%s:%d",strerror(errno),errno);
            exit(BindErr);
        }
    }
    void Listen()
    {
        if(listen(sockfd_,backlog)<0)
        {
            lg(Fatal,"listen error,%s:%d",strerror(errno),errno);
            exit(ListenErr);
        }
    }
    int Accept(string *clientip,uint16_t *clientport)//输出型参数携带客户端信息
    {
        struct sockaddr_in peer;
        socklen_t len=sizeof(peer);
        int newfd=accept(sockfd_,(struct sockaddr*)&peer,&len);
        if(newfd<0)
        {
            lg(Warning,"accept error,%s:%d",strerror(errno),errno);
            return -1;
        }
        char ipstr[64];
        inet_ntop(AF_INET,&peer.sin_addr,ipstr,sizeof(ipstr));
        *clientip=ipstr;
        *clientport=ntohs(peer.sin_port);
        return newfd;
    }
    bool Connect(const string &ip,const uint16_t &port)
    {
        struct sockaddr_in peer;
        memset(&peer,0,sizeof(peer));
        peer.sin_family=AF_INET;
        peer.sin_port=htons(port);
        inet_pton(AF_INET,ip.c_str(),&(peer.sin_addr));
        int n=connect(sockfd_,(struct sockaddr*)&peer,sizeof(peer));
        if(n==-1)
        {
            cerr<<"connect to"<<ip<<":"<<port<<" error"<<endl;
            return false;
        }
        return true;
    }
    void Close()
    {
        close(sockfd_);
    }
    int Fd()
    {
        return sockfd_;
    }
private:
    int sockfd_;
};